Foubth to the cuknt



(No Model.)

J. S. MURRAY.

BALL BEARING FOR BIGYGLES.

No. 306,510; Pdtented 001;. 14 1884.

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JOSEPH S. MURRAY, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE FOURTH TO THE CUNNINGHAM COMPANY, OF, SAME PLACE.

BALL-BEARING FOR BICYCLES.

SPECIFICATION forming part of Letters Patent No. 306,510, dated October 14. 1884- Application filed March 19, 1884.

To all whom it may concern:

Be it known that I, JOSEPH S. :MURRAY, of Boston, in the county of Suffolk and State of Massachusetts, have invented new and useful Improvements in Ball-Bearings for Bicycles and other Velocipedes, of which the following is a specification.

In the accompanying drawings, in which similar letters of reference indicate like parts, Figure 1 is a side elevation of a ball-bearing embodying my invention and especially adapted for bicycles. Fig. 2 is a rear elevation of the same, a portion of the casing being repre sented as broken out. Fig. 3 is a vertical section on line 00 1, Fig. 2. Fig. 4 is an interior View of the casing. Fig. 5 is a view of the cone'shaped sections separated.

A represents the driving shaft or axle of a bicycle.

B is a collar rigidly but detachably driven or keyed onto the axle A, and provided with one or more annular grooves, I), in which are placed the balls c, constructed as usual.

O 0 represent sections of cones surrounding the collar Band grooved at d coincidently therewith, the said sections being made of such widths circumferentially as to leave a slight space between each and the next section. Each section- 0 is provided on its outer face with a groove or opening, 0, into which extend projections E, rigidly secured to the inner surface of the casing E. This casingis internally threaded to receive the adjustingcap H, having its edge serrated at H, in the usual manner. The cap is prevented from rotation by means of the toothed extension I of the oil-cap I, adj usta bly secured to the casing E by the screw J, and the sections 0 are prevented from rotation by means of the projections E, extending into the grooves or open ings O. Thus it will be seen that the axle A and collar B rotate, while the sections 0, cap H, and easing E are stationary, the said casing being secured to the for]: of the bicycle by means of the lug K, in the ordinary man- (No model.)

Rigidly secured to the under side of the casing E is alug or ring of metal, N, provided with a perforation, N. This is intended for attaching luggage, suspending a lamp, or for carrying any articles for which it may be found practicable.

The advantage of suspending a lamp from one of the bearings of the driving-wheel of a bicycle, instead of centrally from the hub thereof, is, as will be understood by all riders, that the shadow of the rim of the wheel is not thrown directly in front. This bearing may be applied not only to bicycle wheels and pedals, but to shafts and axles in machinery of any kind.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

The herein described ball bearing for bicycles and other velocipedes, consisting, essentially, of the internally-threaded casing E, provided with the projections E, the conesections 0, provided with the annular grooves (Z and the grooves or openings 0, into which said projections E extend, the adjusting-cap H, extending between said sections and casing, and the shaft A, grooved collar B, and balls a, all arranged and constructed substantially as and for the purpose set forth.

JOSEPH S. l\'[UllRAY.

\Vitnesses:

llinNnY W. WILLIAMs, J. M. HARTNETT. 

